// Copyright 2022 Jeroen van Nugteren

// Permission is hereby granted, free of charge, to any person obtaining a copy of this software
// and associated documentation files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
// OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#ifndef DM_DISTFUN_HH
#define DM_DISTFUN_HH

#include <armadillo> 
#include <cassert>
#include <memory>
#include <json/json.h>
#include <algorithm>
#include <list>

#include "rat/common/node.hh"
#include "perimeter.hh"

// code specific to Rat
namespace rat{namespace dm{

	// shared pointer definition
	typedef std::shared_ptr<class DistFun> ShDistFunPr;

	// circle distance function for distmesh
	class DistFun: public cmn::Node{
		// methods
		public:
			// virtual destructor
			virtual ~DistFun(){};

			// // polymorphic factory and serialization
			// static ShDistFunPr create(const Json::Value &js);

			// get bounding
			virtual arma::Mat<fltp>::fixed<2,2> get_bounding() const = 0;

			// size of the bounding box
			fltp calc_bounding_size()const;

			// fixed points
			virtual arma::Mat<fltp> get_fixed(const fltp abstol) const;

			// distance function
			virtual arma::Col<fltp> calc_distance(const arma::Mat<fltp> &p) const = 0;
			
			// create perimeter
			virtual ShPerimeterPr create_perimeter(const fltp delem)const;

			// serialization
			static std::string get_type(); 
			void serialize(
				Json::Value &js, 
				cmn::SList &list) const override;
			void deserialize(
				const Json::Value &js, 
				cmn::DSList &list, 
				const cmn::NodeFactoryMap &factory_list, 
				const boost::filesystem::path &pth) override;
	};

}}

#endif
